Pipe-coupling.



L. G-i ROBINSON '& J. B. GAYLOR.

PIPE GOUPLING- APPLICATION FILED FEB. 4,1908.-

Patented Apr. 27, 1909.

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LORING c. ROBINSON AND JOHN B. GAYLOR, or rHERMoPoLIs, WYOMING.

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Patented April Application filed February 4, 1908. Serial No. 414,268.

To all whom it may concern:

Be it known that we, LonrNc C. ROBINSON" and JOHN B. GAYLOR, citizens of the United States, residing at Thermopolis, in the county of Fremont and State of lVyoming, have invented new and useful Improvements in Pipe-Couplings, of which the following is a specification.

Our invention relates to pipe couplings, and its primary object'is to provide a device of this character by means of which two pipes can be connected together for relative rotary movements, the invention being especially adapted for connecting a discharge pipe with the outlet of a rotary pump.

A further object of our invention is to provide a pipe coupling which is simple, durable and eflicient, and which can be manufactured and sold at cost.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter fully described, claimed and illus trated in the accompanying drawing, wherein:

Figure 1 is a central longitudinal sectional view of a pipe coupling constructed in accordance with our invention. Fig. 2 is a view in end elevation thereof, and F 8 is a view similar to Fig. 2, looking at the coupling from the opposite end. I

Referring to the drawing by reference numerals, 1 designates a tubular member which can be of any length and which is provided at one end with externally arranged screw threads 2. A collar 3 embraces the member 1 and is secured thereto in any suitable manner. The collar 3 is located adjacent the transverse center of the tubular member 1, and if found desirable it may be formed integral therewith. A coupling sleeve 4 is rotatably mounted uponthe tubular member 1. The relatively outer end of thecoupling sleeve 4 is provided with externally arranged screw threads 5, while the relatively inner end thereof is provided with a laterally projecting annular flange 6. The relatively inner end of the coupling sleeve 4: is also provided with an annular recess 7 adapted to receive one member of a washer a comparatively low 'medium of the threads 5.

8 which isangular in cross-section. The other member of the washer 8 is interposed between the flange}? and a disk 9, said disk being rotatably mounted upon the tubular member 1 between the washer and the collar the threads 2, and another pipe section is connected to the coupling sleeve through the The coupling sleeve may, however, be directly screwed into the outlet port of a rotary pump. The connection between the tubular member 1 and the coupling sleeve 4 is such that the pipe sections or the pipe section and pump may rotate one with relation to the other. The liquid. passes through the tubular member 1, and the washer 8 forms a liquid-tight joint between the coupling sleeve and said member. It should be apparent that the parts of the device may be readily disassociated to replace the washer.

From the foregoing description taken in connection with the accompanying drawing, the construction and mode of operation of the invention should be understood without a further extended description.

Changes in the form, proportions and minor details of construction may be made within the scope of the claim without departing from the spirit or sacrificing any of the advantages of the invention.

Having fully described and illustrated our invention, what we claim is:

A pipe coupling comprising a tubular member threaded at one end, a collar fixed to the tubular member, a coupling sleeve rotatably mounted on the tubular member and threaded at one end, the opposite end of the sleeve being provided with an annular flange and an annular recess, a disk rotatag V r 919,955

bly mounted on the tubular member between In testimony whereof We nflix our signzv the collar and the flange, an angular Washer tures in presence of two Witnesses.

having one of its members mounted in the recess and its other member between the flange and the disk, bolts passing through the flange and the disk to secure the disk to the sleeve, and a hook carried by one of the bolts and engaging the collar.

LORING G. ROBINSON. JOHN B. GAYLOl-l.

Vitnesses V. H. Jonxs, STEPHEN CARVETII. 

